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https://issues.apache.org/jira/browse/BIGTOP-330?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13527004#comment-13527004
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Mark Grover commented on BIGTOP-330:
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Let's first talk about the 3 files that get updated with every job:
The hsperfdata files are generated by JVM and can be gotten rid of by
{{-XX:-UsePerfData}} (reference:
http://stackoverflow.com/questions/76327/how-can-i-prevent-java-from-creating-hsperfdata-files).
However, I think they belong in /tmp and should stay there.
The remaining file (hadoop-$user.name) is hadoop.tmp.dir which is in turn used
by the default value of some other properties.
> hadoop 0.23 pseudo conf needs to set more properties to avoid using /tmp as
> its datadir
> ---------------------------------------------------------------------------------------
>
> Key: BIGTOP-330
> URL: https://issues.apache.org/jira/browse/BIGTOP-330
> Project: Bigtop
> Issue Type: Bug
> Components: General
> Affects Versions: 0.4.0
> Reporter: Bruno Mahé
> Assignee: Mark Grover
> Priority: Blocker
> Fix For: 0.5.0
>
>
> {quote}
> [root@localhost conf]# ls /tmp/
> hsperfdata_hdfs hsperfdata_yarn
> Jetty_0_0_0_0_50075_datanode____hwtdwq Jetty_0_0_0_0_9999_node____7nyhcr
> nm-local-dir
> hsperfdata_root Jetty_0_0_0_0_50070_hdfs____w2cu08
> Jetty_0_0_0_0_8088_cluster____u0rgz3 logs
> vmware-root
> {quote}
> Some of these directories contain rightfully some temp files, but some others
> seem to contain some data. They should be in /var/lib/hadoop/...
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